In that case, they could demarcate the speakers along the lines of South Asia, South East Asia, and Far East Asia.

South Asia: Pak, India, Bangladesh, Sri Lanka etc

South East Asia: Indonesia, Malaysia etc

Far East Asia: Japan, Philippines, and the two Korea(s)

Now how are they going to demarcate/introduce Russians? 🤔 That country is a part of Asia and Europe (geographically).